#pragma once
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
struct treeNode{
    struct treeNode *_left;
    struct treeNode *_right;
    char _data;
};

typedef struct treeNode Node;

Node *BuyNode(char data);
Node *TreeGrow(const char *str, int* pos);
Node *Pre_In_MKTree(const char *pre, const char *in, int in_start, int in_end);

